Réponses

Meilleure réponse !
2013-09-22T12:16:15+02:00
0=x²-35x-750

Delta = b²- 4ac = (-35)²-4 x 1 x -750 = 4225
x1 = (-b+ \sqrt{delta})/2a = -(-35)- \sqrt{4225} = 15
x2 = (-b- \sqrt{delta})/2a = -50